package com.sky.service.impl;

import com.sky.context.BaseContext;
import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.ShoppingCart;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.ShoppingCartService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class ShoppingCartServiceImpl implements ShoppingCartService {


    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;
    @Override
    public void add(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart=new ShoppingCart();
        Long id = BaseContext.getCurrentId();
        shoppingCart.setUserId(id);
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        if(list!=null &&list.size()>0){
            ShoppingCart shoppingCart1 = list.get(0);
            shoppingCart1.setNumber(shoppingCart1.getNumber()+1);
            shoppingCartMapper.updateById(shoppingCart1);
        }else {
            Long dishId = shoppingCartDTO.getDishId();
            if(dishId!=null){
                Dish dish = dishMapper.getbyid(dishId);
                shoppingCart.setAmount(dish.getPrice());
                shoppingCart.setName(dish.getName());
                shoppingCart.setImage(dish.getImage());
            }else {
                Long setmealId = shoppingCartDTO.getSetmealId();
                Setmeal setmeal = setmealMapper.getById(setmealId);
                shoppingCart.setAmount(setmeal.getPrice());
                shoppingCart.setName(setmeal.getName());
                shoppingCart.setImage(setmeal.getImage());
            }
            shoppingCart.setNumber(1);
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCartMapper.insert(shoppingCart);
        }


    }

    @Override
    public List<ShoppingCart> list() {
        Long currentId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart=new ShoppingCart();
        shoppingCart.setId(currentId);
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        return list;
    }

    @Override
    public void sub(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart=new ShoppingCart();
        Long id = BaseContext.getCurrentId();
        shoppingCart.setUserId(id);
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        ShoppingCart shoppingCart1 = list.get(0);
        shoppingCart1.setNumber(shoppingCart1.getNumber()-1);
        if(shoppingCart1.getNumber()==0){
            shoppingCartMapper.deletebyid(shoppingCart1);
        }
        shoppingCartMapper.updateById(shoppingCart1);

    }

    @Override
    public void deleteall() {
        ShoppingCart shoppingCart=new ShoppingCart();
        Long id = BaseContext.getCurrentId();
        shoppingCart.setUserId(id);
        shoppingCartMapper.deleteAll(shoppingCart);
    }
}
